Coin-controlled x-ray machine.



No. 695,154. Pate nted Mar. n, I902.

.1. M. HUNTER. com CONTROLLED X-RAY momma.

(Application filed Max. 22, 1901.)

3 Sheets-Sheet I.

(No Model.)

l zncaac .W% /%M m: nonms PEYERE co. wornumo WASHINGTON. (3

Patented Mar. ll, I902.

(Application filed Max". 22, 1901.

'3 Sheets-Shem 2.

(No Model.)

,Zzva rzfar No. 695,l54. Patented Mar. ll, I902.

' J. M. HUNTER.

COIN CONTROLLED X-RAY MACHINE.

v p uction. mm Max. 22, 1901. (No Model.) 3 Sheets-Sheet 3.

with rates ATENT met,

JACOB HUNTER, OF CHICAGO, ILLINOIS, ASSIGNOR 'lO WILLIAM T.

BLAINE, OF OHIOAGO,-ILLINOIS.

COIN-CONTROLLED X-RAY MACHINE.

SPECIFICATION forming part of Letters Patent No. 695,154, dated March 11, 1902 Application filed March 22, 1901. Serial No. 52,381. (No model.)

To all whom it may concern:

Beit known that I, J AGOB M. HUNTER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Coin-Controlled X-Ray Machines, of which the following is a specification.

My invention relates particularly to coincontrolled X-ray machinesin which a fluoroscope is used in combination with X-ray eX- citing apparatus, though the invention is not limited to machines equipped with fluoro scopes.

My primary object is to provide a practical coin-controlled X-ray machine which can be used by the public generally for experiment ing with or noting phenomena of the so-called u y xa s My invention is illustrated in its preferred form in the drawings, in which Figure 1 is a vertical section of a coin-controlled X ray machine, the section being taken parallel to the front of the casing; Fig. 2,'a vertical sectional view, the section being taken perpendicular to the front of the cas-' ing; Fig. 8, an enlarged broken sectional view showing a portion of one side of the casing I and the operating handle or lever of the coincontrolled mechanism; Fig. 4, an enlarged broken section showing a coin-actuated wheel and a manually operated Wheel coacting therewith; Fig. 5, a detached view of a convenient form of Crookes tube at'which the X-rays are produced; Fig. 6, a view in side elevation of the detached, coin -controlled mechanism; Fig. 7, a plan view of the same; Fig. 8, a section taken as indicated at line 8 of Fig. 7; Fig. 9, a sectional view taken as indicated at line 9 of Fig. 7 and showing a face View of the coin actuated wheel employed, the parts being shown in the position which they occupy prior to the introduction of a coin; Fig. 10, a similar view illustrating the position of the parts after the manuallyactuated wheel has been rotated, and through the medium of a coin has moved the coin-actuated wheel; Fig. 11, a View of that side of the manually-actuated wheel which is adjacent to the coin-actuated wheel.

A'represent-s a casing of any suitable form,

support A", bearing a fluoroscope A and provided also with an instruction-card support A B, a Crookes tube supported by a clamp B attached to bracket B projecting from an internal surface of the casing; C, an inductioncoil of common construction, the same being provided with a vibrator or current-interrupter a and primary-circuit binding-posts a a D, batteries equipped with conductors I) Z), and E coin controlled mechanism through which the primary circuit is completed when the machine is operated through the medium of a coin.

' The coin-controlled mechanism comprises, preferably, a frame portion E, a shaft E a crank or lever E outside the main casing and fi'xed to said shaft; a manually-actuated wheel E, fixed to the inner end of said shaft and provided with a curved coin-engaging lug c; an adjacent coin-actuated wheel E throu h which the shaft E loosely extends, said lastnamed wheel being provided with curved lugs c 0?, affording between them a channel 0 within which the lug 0 works idly when no coin is interposed; a spring E, which serves to hold the wheel with the lug d thereon in engagement with a stop with which the frame part E is provided; E a spring connected with a lugf, projecting from the coinwheel E and with a part of thestationary frame E; F, a shaft parallel to the rock-shaft E F, a pinion loosely journaled on the shaft F and provided with an arm F F a pawl held by a spring g and bearing upon a ratchetwheel F which is fixed upon the shaftF; F", a gear-train actuated from a gear F and communicating motion to a fan or regulator F F, a contact-wheel fixed to the shaft F and provided peripherally with a recessh; F", a contact-spring provided with a point h,which projects into the notch or recess 71 of the contact-wheel l8 when said contact-wheel is at rest andwhich bears upon the peripheral surface of said contact-wheel when said wheel is in motion; G, a spring locking device provided with a lug or point 70, Fig. 4, which rides upon a cam with which the coin-actuated wheel is provided, and serves to engage one of the teeth W, with which said coin-wheel is equipped throughout a portion of its circumference, and provided also with ICC) a lug having a beveled surface 70 which serves to engage a shoulder W, with which the manually-operated wheel is provided, thereby to release the coin-actuated wheel from the lug 70 when the manually-operated wheel returns to its position of rest under the influence of its spring; H, a coin-chute leading to the upper portion of the coin-actuated wheel; H, a coin-discharge passage leading from the coin-controlled mechanism, and H a coin-box with which the passage H communicates.

When in rest, the lug c and the lugs c c occupy the relative positions shown in Fig. 9, and a coin-passage Zis afforded, leading from the base of the coin-chute H to the lower portion of the lug c. The lower end of the lug 0 projects beyond the lower end of the lug c affording a rest for the coin Z. When the handle E is moved in the direction indicated by the arrow in Fig. 3, the wheel E is, through will force the same against the lug c and cause the wheel E to make a partial rotation. After such action the wheel E would occupy theposition shown in Fig. 10, and upon release of the handle E the wheel E would at once return to its former position, allowing the coin to fall into the discharge-passage H".

When the coin-actuated wheel E is moved in the direction indicated by the arrow in Fig. 6, as through the medium of a coin, the spring Ellis extended andthe gear-sector on the coinactuated wheel, through the medium of the pinion F, imparts a complete revolution to the arm F upon its shaft F, the pawl F being carried completely around the ratchetwheel F and caused to take a new hold upon the single tooth or shoulder with which said ratchet-wheel is shown provided; The spring E now contracts, imparting a comparatively slow movement to the pinion f and arm F in the direction indicated by the arrow in Fig. 8. This movement is retarded by the action of the fan F The shaft F rotates with the ratchet-wheel F, thereby imparting motion to the contact-wheel F This brings the periphery of said contact-wheel into contact with the point h, and this contact continues during a revolution of said contactwheel, after which the mechanism comes'to rest in the position indicated in Fig. 6. As will be understood from Fig. 4., the lug]; drops into engagement with a tooth k of the gear-sector with which the coin-wheel is provided after the cam 70 has been carried around far enough to pass completely from engagement with or support of said lug. When the crank E is released after manual actuation thereof, the wheel F. returns quickly to its position of rest, and as the shoulder 76 engages the inclined surface 70 the device Gis thereby lifted, removing the lug 70 from engagement with the tooth of the coin-actuated wheel This leaves the coin-actuated wheel free to be returned slowly to its position of rest under the action of the spring E The operation of the machine will be readily understood from the foregoing description.

The construction of the coil 0, the connection of the secondary winding thereof with the Crookes tube, the common form of circuitinterrupter for the primary circuit, and the construction and application of a condenser to the primary circuit or a shunt thereof are all well understood. The use in general of a fluoroscope in connection with an X-ray apparatus is well understood. In the present construction the support A is of box form, having open ends allowing a hand or any small article to be readily inserted between the finoroscope-screen m, which may be of tungstate of calcium or any other suitable chemical. The casing-front, if made of hard wood, is provided with an opening m, which is situated between the screen an and the Crookes tube. I

It will now be understood that the machine may be operated by inserting a coin into the coin-chute H and actuating the handle E thereby setting the spring E and that during the rotation of the contact-wheel F under the action of the spring E the primary circuit is closed during approximately one revolution of .said contact-wheel. The period of revolution of said contact-wheel obviously may be changed as desired. Immediately upon the completion of the primary circuit the induced current of the secondary circuit begins the excitation of X-rays, and by the time the contact-wheel F has completed a small fraction of one revolution the X-rays are being produced in great enough abundance to enable the operator to view the representation or shadow of the bony structure of the hand or of any article impervious to the passage of X-rays, which may be placed between the fluoroscope-screen and the source of the X- motion thereto, and a manually-operated coin-engaging device which serves, through the medium of a coin, to move said coin-actuated wheel, substantially as described.

2. In a machine of the character described, the combination of a casing, X-ray apparatus installed therein, and coin-controlled mechanism for controlling the operation of said X- ray apparatus, comprising a rotating contactmaker, a coin-actuated wheel through the medium of which the said contact maker is moved, a shaft extending loosely through said wheel a spring connected with said wheel, a coin-engaging Wheel fixed to the inner end of said shaft and located adjacent to said coinactuated Wheel, a coin-passage between said wheels, and an operating-handle connected with said shaft and located outside said casing, substantially as described.

3. In a machine of the character described, the combination of a coin-actuated wheel provided with lugs 0, a a shaft extending loosely JACOB M. HUNTER In presence of- D. WV. LEE, ALBERT D. 1311001. 

